we have RijndaelManaged algorithm written in .net. same thing I wanted to convert in objective c . Please help me on this.

Please find the c charp code.

private string EncryptKey(string key)
{
byte[] objIV = null;
byte[] objSecretKey = null;
string strSecretKey = GetConfigValue(MyPatients.Utils.Constants.SECRET_KEY);
string strIVKey = GetConfigValue(MyPatients.Utils.Constants.IV_KEY);
string strEncrypted = null;

if ((strSecretKey.Length > 0))
{
objSecretKey = HexToByte(strSecretKey);
}

if ((strIVKey.Length > 0))
{
objIV = HexToByte(strIVKey);
}

byte[] aibUrlArray = System.Text.Encoding.UTF8.GetBytes(key);
byte[] EncryptedStringArray = null;

// instantiate a Rijndael Object
RijndaelManaged objRijndael = new RijndaelManaged();

// initializing the Rijndael Encryptor
objRijndael.Mode = CipherMode.CBC;
objRijndael.Padding = PaddingMode.PKCS7;
objRijndael.KeySize = 256;
objRijndael.BlockSize = 128;

// Creating an encryptor
ICryptoTransform objEncryptor = objRijndael.CreateEncryptor(objSecretKey, objIV);

// Creating a memory string
System.IO.MemoryStream objMemoryStream = new System.IO.MemoryStream();
CryptoStream objCryptoStream = new CryptoStream(objMemoryStream, objEncryptor, CryptoStreamMode.Write);

objCryptoStream.Write(aibUrlArray, 0, aibUrlArray.Length);
objCryptoStream.FlushFinalBlock();

// Encrypted data to the array
EncryptedStringArray = objMemoryStream.ToArray();

// Create the encrypted string:
strEncrypted = ByteToHex(EncryptedStringArray);

return strEncrypted;
}

Thanks in advance.

I tried to download the zip but it is giving me error.